OPTICAL-PROPERTIES OF (ALXGA1-X)(0.5)IN0.5P QUATERNARY ALLOYS

被引：56

作者：

KATO, H ^{[1
]}

ADACHI, S ^{[1
]}

NAKANISHI, H ^{[1
]}

OHTSUKA, K ^{[1
]}

机构：

[1] SANKEN ELECT CO LTD,DIV RES & DEV,NIIZA,SAITAMA 352,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 1A期

关键词：

ALGAINP; GAINP; OPTICAL CONSTANT; DIELECTRIC FUNCTION; REFRACTIVE INDEX; ABSORPTION COEFFICIENT; NORMAL-INCIDENCE REFLECTIVITY; SPECTROSCOPIC ELLIPSOMETRY;

D O I：

10.1143/JJAP.33.186

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dielectric function spectra epsilon(E) of (AlxGa1-x)(0.5)In0.5P quaternary alloys lattice-matched to GaAs have been measured at room temperature in the 1.2-5.5-eV photon-energy range using spectroscopic ellipsometry (SE). The measured SE spectra show distinct structures at energies of the E(0), E(1) and E(2) critical points. These spectra are analyzed on the basis of a simplified model of interband transitions. This model enables us to obtain the, optical response in (AlxGa1-x)(0.5)In0.5P alloys of arbitrary composition x and photon energy E=hw. Results are presented for the complex refractive index (n*=n+ik), absorption coefficient (alpha) and normal-incidence reflectivity (R) of these alloys.

引用

页码：186 / 192

页数：7

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